Special high temperature-resistant coatings for the repair of cracks in the inside of the combustion furnace

China Paint Online News Information: Burn furnace is the source of power in industrial production, because of its long-term high temperature, the furnace inside and outside the production of serious high temperature oxidation corrosion, most of the treatment methods are used in the furnace heat-resistant insulation coating, external use of high temperature anti-corrosion anti-oxidation paint, which is now the most commonly used in the anti-corrosion market burner overall anti-corrosion program.
Burner with the increase in service life, more or less due to improper use of the furnace body internal protective layer damage, such as cracks, shedding and other imagination, if the overall replacement will bring a lot of costs, the best way is to ensure maximum use of the premise of the lowest cost repair. The zs-1 heat-resistant insulation coating, ZS-933 ceramic waterproof coating and the exclusive patented high temperature solution developed and produced by Beijing Zhisheng Weihua will be used with durability.
of the combustion furnace can be divided into the following situations:
1. The crack is large and has the drum bag hollow place: to rock cotton and other temperature-resistant materials to make repairs, with screwdrivers and other rock cotton from the crack filled to the hollow part, forced to compress the air in the air to prevent secondary shedding, cracks in Beijing Zhisheng Weihua company adhesive with high temperature insulation coating ZS-1 (1000 degrees C) mixed use sealing and surface treatment.
2. Small cracks and no drum pack hollow space: first the small cracks to the treatment widened to 2-3cm, and then with our high temperature solution moisturizing 1-2 times, each interval of 1 hour, and then with ZS-1 (1000 degrees C): ZS-933 according to 1:1 ratio of brushing many times, until the design thickness is reached.
3. Design two repair schemes at the whole block shedding: (1) brush the bottom 1-2 times with a high temperature solution, then use ZS-1 (1000 degrees C): ZS-933 brush multiple times at a 1:1 ratio until the design thickness is reached (2) Brush the adhesive at the bottom of the shedding site and the lower part of the shedding coating, re-glue the shedding coating to the falling part of the furnace wall, if there are cracks with ZS-1 (1000 degrees C): ZS-933 is brushed as a seal treatment at a 1:1 ratio.
ZS-1 thermal insulation coating is made from specially synthesized inorgeable silicate solutions, aluminum silicate fibers, thermal reflective substances and selected hollow ceramic microbeads. Paint belongs to the inorororous single part, non-toxic harmless. The thermal conductivity of the coating is very low, only 0.03W/m.k, the insulation effect is obvious, the suppression efficiency can reach about 90% under certain thickness conditions. For low-temperature objects can also effectively keep cold, effectively suppress the external heat source due to heat conduction led to the temperature of low-temperature objects rise. Suitable for high-temperature kilns, furnaces, high-temperature molds, pipes, electric furnaces, induction furnaces, rotary kilns and so on.
ZS-933 ceramic waterproof coating film-forming material by silicon oxygen-Si-O-Si-key-based main chain, grafted with ammonia, phenolic polymer-based function group side chain as a supplement, and then to the end chain of niobium-based chelation. Add alumina, silicon carbide, etc. as fillers. After the overall molding of the coating, thin thickness, high hardness, smooth and full coating surface, good weather resistance flame retardant, one-way breathability, high self-cleaning, long time at high temperature, room temperature acid-base immersion coating no change, used in construction, tunnels, metals, building materials and so on.
repair, can not be comparable to the overall use of the effect, but is also the best choice to reduce costs and emergencies.
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